this OEM York pressure switch serves as a critical safety limit

Pneumatic Versatility: The 4-way

It features a precision-machined 1-inch bore and a standard 1/4" x 1/8" keyseat

and electrical cover to facilitate immediate field installation

Internal Protection: Features internal inherent line break protection to prevent motor burnout during thermal overloads

Laars Heating Systems RE2344301 Control Refrigerant this OEM York pressure switchThe Laars RE2344301 is a critical PCB Temperature Control Module engineered specifically for high demand hydronic systems. As a genuine Laars HVAC replacement part, this electronic control board provides the precise logic required to manage boiler firing sequences and maintain tight temperature setpoints. Designed for exact fit compatibility with MightyTherm2 series units (including 200 thru 400 models), it replaces aging or failed modules to restore